Railroad-tie.



I. S. CAMPBELL.

RAILROAD TIE,

APPLICATION FILED OCT. 5.1916.

Patented July 31, 1917.

JOHN S. CAMPBELL, OF EUGLID, PENNSYLVANIA.

RAILROAD-TIE.

Specification of Letters Patent.

Patented July 31, 1917.

Application filed October 5, 1916. Serial No. 123,953.

To all whom t may concern.'

Be it known that I, Jox-1N S. CAMPBELL, a citizen of the United States, and resident of Euclid, in the county of Butler, and in the State of Pennsylvania, have invented a certain new and useful Improvement in Railroad-Ties, and do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to railroad ties, and my object is to provide a construction of tie that will remain in its place and not shift, or slide therefrom and thereby avoid the expense of replacing it and the dan er which comes from the absence of an a equate support for the rails by reason of the shifted position, and to this end my invention consists in the railroad tie having the characteristics of construction, or formation substantially as hereinafter specified and claimed.

An embodiment of my invention is illustrated in the accompanying drawings, in which- Figure l is a perspective view of a metal tie embodying my invention;

Fig. 2 is a side elevation of a section of track equipped with ties embodying my invention.

The tie shown in the drawings is made of steel and consists of a iiat top, or table 10 on which the rail 11 rests; a vertical stem, or web 12 extending downward from said rail rest, and a base 13 having in cross section the concavo-convex form shown with the convex side downward and the concave side upward, that is to say, a formation' tions from the stem, or shank. Directly below the shank, or stem, and being in effect a continuation thereof on the underside of the base 13, is a rib 14. It will be seen that with the bed, or ballast material driven underv the base sliding movement' of the tie lengthwise of the rails is impossible, first because of the inclination of the underside of the base upward and forward with reference to the direction in which the tie would tend to move, and second because of the action of the rib 14k under a tendency to move which would crowd, or force the material in advance of it forward and thus actually tend to tighten the embedment of the base in the ballast. The concave, or disk Jform of the upper side of the base enables the tight clam ing and interlocking of the tie with the ballast material.

It will be evident that the manufacture of ties in accordance with my invention involves no special item of expense, and that the ties will achieve the desirable results of obviating the danger and expense that come from displacement by sliding, or slipping over the road bed.

Having thus described my invention what I claim is- A metal tie for railroad rails having a rail-engaging top, a stem or shank extending downward from said top, a base connected with said stem and having an under bed-engaging surface that inclines upward in each direction from said stem, said base having a rib-like projection on its underside in line with said stem, or shank, the upper side of said base being inclined upward from the stem, or shank.

In testimony that I claim the foregoing I have hereunto set my hand.

JOI-IN Si. CAMPBELL.

Copies of this patent may 'ne obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

